It's part of HTML5 - developed by the W3C and IETF in cooperation. WebRTC includes peer-to-peer voice, video and data channels - a great platform for games, video chats and much more. There's even a p2p browser based implementation of BitTorrent using WebRTC.
• #1: Introduction to WebRTC - Nov 14th 2014
• #2: WebRTC protocols and security - planned for January 2015